A portable laser emitter, laser target, and method for measuring the toe angle of a commercial truck steer axle are disclosed. The laser emitter is mounted to the wheel of a truck steer axle while the laser target is placed in front of the truck. Measurements are taken of the laser dot position on the target with the emitter mounted at either end of the steer axle. The process is then repeated with the target positioned behind the truck. The measurements taken from either end of the steer axle with both front and rear target positions are compared to determine the toe angle of the steer axle.

Described is a method for aligning a vehicle service system (1) relative to a vehicle (2) positioned in a service area (8), where the vehicle service system (1) comprises: a calibration structure (3) for calibrating an ADAS sensor of an advanced driver assistance system of the vehicle (2); an apparatus (4) for measuring the alignment of the vehicle (2) and on which an apparatus camera (41) is mounted; wherein the method comprises the following steps: applying a front wheel target (51) and a rear wheel target (52) on a front wheel and on a rear wheel of the vehicle (2); capturing an image through the apparatus camera (41), wherein the image represents the front wheel target (51) and the rear wheel target (52); processing the image to derive information useful for positioning the calibration structure (3) relative to the vehicle (2); placing a positioning device (7) at an operating position, spaced from the calibration structure (3), in front of the apparatus (4) and alongside the first side of the vehicle (2).

A wheel alignment guide that provides a visual indication of the desired placement of an apparatus. The wheel alignment guide includes a body having an opening disposed therein. The wheel alignment guide is configured to surround a portion of the apparatus, such as a wheel, via the opening. In addition, the wheel alignment guide is adapted to rest on a ground surface, being held in place via a charge, such as an electrostatic charge created by static cling vinyl. A wheel of a medical device is disposed within the opening of the wheel alignment guide after a desired position of the medical device is selected. If the medical device is moved during a medical procedure, the medical device may be repositioned due to the placement of the wheel alignment guide. Accordingly, the wheel alignment guide eliminates the need for inefficient markers and potentially-dangerous adhesives, particularly in an operating room.

A measuring station system for calibrating a reference system for vehicle measurement has at least one image recording device, a calibration device having multiple calibration device reference features, and a calibration frame having at least three support points which are designed for accommodating a reference system carrier for the reference system to be calibrated. The calibration frame has at least three calibration frame reference features. The positions of the support points and of the calibration frame reference features in a shared coordinate system are known.

A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of view, with a common overlapping region associated with each respective side of the vehicle support structure. Optical targets disposed within each of the overlapping field of view regions are observed by the imaging components to establish performance ratings for the system as a whole, for groups of components within the system, and for individual components within the system.

The present invention belongs to the field of machine vision system technologies, and discloses a target unit of a machine vision system, a target assembly and a machine vision system, the target unit including a protective plate, a light absorbing layer and a light reflecting layer. The protective plate includes a connection surface. The light reflecting layer is connected to the light absorbing layer, one of the light absorbing layer and the light reflecting layer includes a preset pattern and is connected to the protective plate through the connection surface, and a surface that is of the other of the light absorbing layer and the light reflecting layer and that faces away from the protective plate is an outer surface of the target unit. In the target unit in the embodiments of the present invention, the protective plate can provide functions such as mechanical support, flatness and water resistance and scratch resistance, and a substrate in the prior art can be omitted, so that the weight of the target unit in this embodiment is reduced, and the thickness of a product is reduced, enabling that it is possible to make a thinner product. In addition, a product assembly process is simplified, and product costs are reduced.

A method for aligning a calibration device with a vehicle based on a wheel aligner and a calibration system are provided. The wheel aligner includes an image sensor and a computer. The computer controls at least one image sensor to image a vehicle-mounted target on a vehicle, and processes the obtained image to determine a position of the vehicle. The computer controls the at least one image sensor to image a reference target on a calibration device, and processes the obtained image to determine a position of the calibration device. The computer determines an adjusting mode of the calibration device according to the position of the vehicle and the position of the calibration device, so that the calibration device is aligned with the vehicle according to an anticipated position or direction. The method can guide an operator to accurately align the calibration device with the vehicle.

A camera calibration tool for calibrating one or more cameras of a mobile machine comprising calibration targets and a net. Each of the calibration targets comprises identifiable indicia. The net is adapted to be coupled to the mobile machine. The net has one or more configurations that define predetermined target locations, with location markers, in a predetermined layout. The calibration targets are positioned respectively at the predetermined target locations in the predetermined layout to calibrate the one or more cameras by use of the calibration targets.

Vehicle alignment systems and methods are disclosed which operate based on a calculation of drive direction, or the direction in which a vehicle is moving. Since a vehicle can be assumed to be a rigid body, each wheel has the same drive direction. Consequently, an alignment parameter of one wheel can be compared to the same parameter of another wheel by equating their drive direction, eliminating the need for the aligner to see both sides of the vehicle at the same time. Embodiments include a system having one or more cameras on a fixture carrying a calibration element for an ADAS system, and one or more targets placed on the vehicle to measure the drive direction of the vehicle. The drive direction is assumed to be parallel to the vehicle thrust line and can be used as the line for orientation of the fixture to the vehicle.

Vehicle service system comprising optical reader apparatuses, which are arranged in the vehicle service area, on opposite sides with respect to the longitudinal axis of a vehicle. The vehicle service system comprises at least two targets, which are arranged in the vehicle service area in positions immediately adjacent to the respective optical reader apparatuses so as to be positioned on the sides of the vehicle. The optical image reader apparatus comprises a first optical image acquisition device having a first field of view, which frames the vehicle, and a second optical image acquisition device, which has a second field of view different from the first field of view and is structured so as to frame the target.